com·mis·sur·ot·o·my

commissurotomy

/com·mis·sur·ot·o·my/ (-ot´ah-me) surgical incision or digital disruption of the components of a commissure to increase the size of the orifice; commonly done to separate adherent, thickened leaflets of a stenotic mitral valve.

commissurotomy

(kŏm′ə-sho͝o-rŏt′ə-mē)

n.pl.commissuroto·mies

Surgical incision of a commissure in the body, as one made in the heart to relieve constriction of the mitral valve or one made in the brain to treat seizure disorders.

commissurotomy

[kom′ishoo͡rot′əmē]

Etymology: L, commissura, a connection; Gk, temnein, to cut

the surgical division of a fibrous band or ring connecting corresponding parts of a body structure. A commissurotomy is commonly performed to separate the thickened, adherent leaves of a stenosed mitral valve.

commissurotomy

Surgery The surgical splitting of a commissure–eg in the brain or cusps of heart valves. See Percutaneous transvenous mitral commissurotomy.

com·mis·sur·ot·o·my

(kom'i-shŭr-ot'ŏ-mē)

1. Surgical division of any commissure, fibrous band, or ring using surgery or a balloon catheter technique.

There are a few case reports in the literature on PTMC in similar settings (1-6) due to the fact that many of these patients undergo surgical commissurotomy due to the technical difficulties involved (7,8).

These subtests were chosen on the basis of converging evidence from studies on patients with unilateral cerebral lesions, on patients with complete forebrain commissurotomy, and on normal participants suggesting that verbal and sequential skills are primarily related to the left hemisphere whereas visuospatial skills are primarily related to the right hemisphere (Gordon, 1986).

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